come with the delivery. You can find them listed in chapter
"Product description".
Instructions manuals for accessories and replacement
parts
Tip:
ensure reliable setup and operation of your VEGAFLEX 66,
To
we offer accessories and replacement parts. The associated
documents are:
l 27720 - VEGADIS 61
l 30207 - Electronics
l 31088 - Flanges
l 30391 - Spacer
32764-EN-080716
VEGAFLEX 66 • Profibus PA3
module VEGAFLEX series 60
according to DIN-EN-ASME-JIS-GOST
1 Abou
t this document
1 Abo
ut this document
1.1 Function
This
operating instructions manual provides all the information
you need for mounting, connection and setup as well as
important instructions for maintenance and fault rectification.
Please read this information before putting the instrument into
operation and keep this manual accessible in the immediate
vicinity of the device.
1.2 Target group
This operating instructions manual is directed to trained
personnel. The contents of this manual should be made
available to these personnel and put into practice by them.
1.3 Symbolism used
Information, tip, no
This symbol indicates helpful additional information.
Caution: If
tions can result.
Warning: If this warning is ignored, injury to persons and/or
serious damage to the instrument can result.
Danger: If this warning is ignored, serious injury to persons
and/or destruction of the instrument can result.
this warning is ignored, faults or malfunc-
te
applications
Ex
This symbol indicates special instructions for Ex applications.
lList
The dot set in front indicates a list with no implied sequence.
àAction
This arrow
1Sequence
Numbers set in front indicate successive steps in a procedure.
4VEG
indicates a single action.
32764-EN-080716
AFLEX 66 • Profibus PA
2 For
your safety
2 For
your safety
2.1 Authorised personnel
All
operations described in this operating instructions manual
must be carried out only by trained specialist personnel
authorised by the plant operator.
During work on and with the device the required personal
protection equipment must always be worn.
2.2 Appropriate use
VEGAFLEX 66 is a sensor for continuous level measurement.
You can find detailed information on the application range in
chapter "Product description".
Operational reliability is ensured only if the instrument is
properly used according to the specifications in the operating
instructions manual as well as possible supplementary
instructions.
For safety and warranty reasons, any invasive work on the
device beyond that described in the operating instructions
manual may be carried out only by personnel authorised by the
manufacturer. Arbitrary conversions or modifications are
explicitly forbidden.
2.3 Warning about misuse
Inappropriate or incorrect use of the instrument can give rise to
application-specific hazards, e.g. vessel overfill or damage to
system components through incorrect mounting or adjustment.
2.4 General safety instructions
This is a high-tech instrument requiring the strict observance of
standard regulations and guidelines. The user must take note
of the safety instructions in this operating instructions manual,
the country-specific installation standards as well as all
prevailing safety regulations and accident prevention rules.
The instrument must only be operated in a technically flawless
and reliable condition. The operator is responsible for troublefree operation of the instrument.
32764-EN-080716
VEGAFLEX 66 • Profibus PA5
2 For
your safety
the entire duration of use, the user is obliged to
During
determine the compliance of the required occupational safety
measures with the current valid rules and regulations and also
take note of new regulations.
2.5 Safety approval markings and safety tips
The safety approval markings and safety tips on the device
must be observed.
2.6 CE conformity
The protection goals of the EMC Directive 2004/108/EC (EMC)
and the Low Voltage Directive 2006/95/EC (LVD) are fulfilled.
Conformity has been judged according to the following
standards:
EMC: EN 61326-1: 2006
(electrical instruments for control technology and laboratory
use - EMC requirements)
l Emission: Class B
l Susceptibil
ity: Industrial
LVD: EN 61010-1: 2001
(safety regulations for electrical measurement, control and
laboratory instruments - part 1: General requirements)
areas
2.7 Fulfilling of NAMUR recommendations
With respect to interference resistance and emitted interference, the NAMUR recommendation NE 21 is fulfilled.
With respect to compatibility, the NAMUR recommendation
NE 53 is fulfilled. This applies also to the corresponding
indicating and adjustment components. VEGA instruments are
generally upward and downward compatible.
l Sensor
l DTM VEGAFLEX 66 for adjustment software PACTware
l Indicating and adjustment module for sensor software
software for DTM
The parameter adjustment of the basic sensor functions is
independent of the software version. The range of available
functions depends on the respective software version of the
individual components.
The software version of VEGAFLEX 66 can be determined as
follows:
6VEG
VEGAFLEX 66 HART, PA or FF
32764-EN-080716
AFLEX 66 • Profibus PA
your safety
2 For
l via PACTware
the type label of the electronics
l on
l via the indicating and adjustment module
You can
view all software histories on our website www.vega.
com. Make use of this advantage and get registered for update
information via e-mail.
2.8 Safety instructions for Ex areas
Please note the Ex-specific safety information for installation
and operation in Ex areas. These safety instructions are part of
the operating instructions manual and come with the Exapproved instruments.
2.9 Manufacturer declaration for zone 2
In conformity with DIN EN 60079-15/2005 VEGAFLEX 66 is
suitable for use in zone 2.
The operator must use the instrument as it was intended to be
used and follow the specifications of the following documents:
l this operating instructions manual
l the manufacturer declaration 32906 (download
"www.vega.com")
l the
applicable installation regulations
under
2.10 Environ
mental instructions
Protection of the environment is one of our most important
duties. That is why we have introduced an environment
management system with the goal of continuously improving
company environmental protection. The environment management system is certified according to DIN EN ISO 14001.
Please help us fulfil this obligation by observing the environmental instructions in this manual:
l Chapter "Packaging, transport and
l Chapter "Disposal"
32764-EN-080716
VEGAFLEX 66 • Profibus PA7
storage"
3 Produc
t description
Scope of delivery
Components
3 Prod
3.1 Configurat
uct description
ion
The scope of delivery encompasses:
l VEGAFLEX 66 level sensor
l Documentation
- this
operating instructions manual
- Operating instructions manual 27835 "Indicating and
adjustment module PLICSCOM" (optional)
- Supplementary instructions manual 31708 "Heating for
indicating and adjustment module" (optional)
- Supplementary instructions manual "Plug connector for
l Process fitting
l Housing with electronics
l Housing cover, optionally
probe
available with indicating and
adjustment module
8VEG
32764-EN-080716
AFLEX 66 • Profibus PA
1
2
3
3 Produc
t description
version with plastic housing
ation
Type label
Fig. 1: VEGAFLEX 66 - cable
1Housing cover with integrated indicating and adjustment module (optional)
2Housing with electronics
3Process fitting
The type label contains the most important data for identi-
fication and use of the instrument:
l Article number
l Serial number
l Technical data
l Article numbers, document
With the serial number, you can access the delivery data of the
instrument via "
www.vega.com", "VEGA
Tools" and "serial
number search". In addition to the type label outside, you can
also find the serial number on the inside of the instrument.
3.2 Principle of operation
Application range
32764-EN-080716
VEGAFLEX 66 • Profibus PA9
VEGAFLEX 66 is a level sensor with coax, rod or cable probe
for continuous level measurement in non-conductive products
with temperatures of -110 … +400 °C (-166 … +752 °F).
3 Produc
t description
is designed for industrial use in all areas of process
It
technology and can be used in non-conductive liquids.
Functional principle
Power supply and bus
communication
GSD/EDD
High frequency microwave pulses are guided along a steel
rope or a rod. Upon reaching the product surface, the
microwave pulses are reflected. The running time is evaluated
by the instrument and outputted as distance.
Power supply via the Profibus DP/PA segment coupler or
VEGALOG 571 EP cards. A two-wire cable according to
Profibus specification serves as carrier of both power and
digital data signals for multiple sensors. The instrument profile
of VEGAFLEX 66 corresponds to profile specification version
3.0.
The GSD (instrument master files) and bitmap files necessary
for planning your Profibus-DP-(PA) communication network
are available from the download section on the VEGA
homepage
www.vega.com
under "Services - Downloads -Software - Profibus". There you can also find the appropriate
certificates. In a PDM environment, an EDD (Electronic Device
Description) is also required to enable the full range of sensor
functions (also available as a download).A CD with the
appropriate files can be ordered via e-mail under info@de.
vega.com or by phone from one of the VEGA agencies under
the order number "DRIVER.S".
The optional heating requires its own power supply. You can
find further details in the supplementary instructions manual
"Heating for indicating and adjustment module".
3.3 Operation
VEGAFLEX 66 can be adjusted with different adjustment
media:
l with indicating and adjustment module
l with the suitable VEGA
DTM in
adjustment software according to the FDT/DTM standard,
e.g. PACTware and PC
l with the adjustment program PDM
The
entered
parameters are generally saved in VEGAFLEX
66, optionally also in the indicating and adjustment module or
in PACTware.
10VEG
conjunction with an
32764-EN-080716
AFLEX 66 • Profibus PA
3 Produc
t description
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature
3.4 Pack
aging, transport and storage
Your instrument was protected by packaging during transport.
Its capacity to handle normal loads during transport is assuredby a test according to DIN EN 24180.
The packaging of standard instruments consists of environ-
ment-friendly, recyclable cardboard. For special versions, PE
foam or PE foil is also used. Dispose of the packaging material
via specialised recycling companies.
Transport must be carried out under consideration of the notes
on the transport packaging. Nonobservance of these instructions can cause damage to the device.
The delivery must be checked for completeness and possible
transit damage immediately at receipt. Ascertained transit
damage or concealed defects must be appropriately dealt
with.
Up to the time of installation, the packages must be left closed
and stored according to the orientation and storage markings
on the outside.
Unless otherwise indicated, the packages must be stored only
under the following conditions:
l Not
l Dry and dust free
l Not exposed to corrosive media
l P
l Avoiding mechanical shock and vibration
l Storage and transport temperature see "Supplement -
l Relative humidity 20 … 85 %
in the open
rotected against solar radiation
Technical
data - Ambient conditions"
32764-EN-080716
VEGAFLEX 66 • Profibus PA11
4 M
ounting
Mounting position
Welding work
Handling
Moisture
4 Mou
nting
4.1 General instructions
Select
an installation position you can easily reach for
mounting and connecting as well as later retrofitting of an
indicating and adjustment module. The housing can be rotated
by 330° without the use of any tools. You can also install the
indicating and adjustment module in four different positions
(each displaced by 90°).
Before beginning the welding work, remove the oscillator
(electronics) from the sensor. By doing this, you avoid damageto the electronics through inductive coupling.
With threaded versions, the housing must not be used to screw
in the instrument! Applying tightening forces on the housing
can damage its internal parts.
Use the hexagon for screwing in.
Use the recommended cables (see chapter "Connecting to
power supply") and tighten the cable gland.
You can give your instrument additional protection against
moisture penetration by leading the connection cable downward in front of the cable entry. Rain and condensation water
can thus drain off. This applies mainly to outdoor mounting as
well as installation in areas where high humidity is expected (e.
g. through cleaning processes) or on cooled or heated
vessels.
Measuring range
Fig. 2: Measures
The reference plane for the measuring range of the sensors is
against moisture penetration
the sealing surface of the thread or flange.
12VEG
32764-EN-080716
AFLEX 66 • Profibus PA
ounting
4 M
in mind that a min. distance must be maintained below
Keep
the reference plane and possibly also at the end of the probe measurement in these areas is not possible (dead band). Keep
in mind that the cable length cannot be used all the way to the
end because measurement in the area of the gravity weight is
not possible. These min. distances (dead bands) are listed in
chapter "Technical data".
Pressure
Mounting position
The process fitting must be sealed if there is gauge or low
pressure in the vessel. Before use, check if the seal material is
resistant against the measured product and the process
temperature.
The max. permissible pressure is specified in chapter
"Technical data" or on the type label of the sensor.
4.2 Mounting instructions
Mount VEGAFLEX 66 in such a way that the distance to vessel
installations or to the vessel wall is at least 300 mm (12 in).
During operation, the probe must not touch any installations or
the vessel wall. If necessary, fasten the probe end.
In vessels with conical bottom it can be advantageous to
mount the sensor in the center of the vessel, as measurement
is then possible down to the lowest point of the bottom. When
using the cable version, keep in mind that measurement down
to the tip of the probe is not possible. The exact value of the
32764-EN-080716
VEGAFLEX 66 • Profibus PA13
4 M
ounting
Standpipes or bypass
tubes
min. distance (lower
dead band) is stated in chapter "Technical
data".
Fig. 3: Vessel
with conical bottom
Standpipes or bypass tubes are normally metal tubes with a
diameter of 30 … 200 mm (1.18 … 7.87 in). In measurement
technology such a tube corresponds to a coax probe. It does
not matter if the standpipe is perforated or slotted for better
mixing. Lateral inlets with bypass tubes also do not influence
the measurement.
Measuring probes can be mounted in bypass tubes up to
DN 200.
The max. temperature is 250 °C (482 °F).
If VEGAFLEX 66 is used in standpipes or bypass tubes,
contact with the tube wall should be avoided. We offer spacers
as accessories for fastening the probe in the middle of the
tube.
Depending on the tube diameter or tube length, one or several
spacers can be mounted. With cable probes, the cable can
also be strained to avoid contact with the tube.
The max. temperature for the spacers is 250 °C (482 °F).
A special high temperature version of VEGAFLEX 66 with
integrated bypass tube can be used in applications with
temperatures up to 400 °C (752 °F).
32764-EN-080716
14VEG
AFLEX 66 • Profibus PA
in mind that buildup can form on the spacers. Strong
1
Keep
buildup can influence the measurement.
4 M
ounting
Fig. 4: Position
1Spacer
of the spacer
Note:
Measureme
nt in a standpipe is not recommended for very
adhesive products.
Inflowing medium
Make sure that the probe is not subjected to strong lateral
forces. Mount VEGAFLEX 66 at a position in the vessel where
no disturbances, e.g. from filling openings, agitators, etc., can
occur.
32764-EN-080716
VEGAFLEX 66 • Profibus PA15
4 M
ounting
Fixing
Heat insulation
Fig. 5: Lateral
load
Excessive system vibration or shocks, e.g. caused by agitators
or turbulence in the vessel (e.g. from fluidisation) can cause
the coax probe of VEGAFLEX 66 to vibrate in resonance.
Should a coax probe of more than 1 m (3.281 in) length should
be used, you can provide a suitable support or guy directly
above the end of the probe to stabilise it.
If there is a danger of the probe touching the vessel wall during
operation due to product movements or agitators etc., the
measuring probe should be securely fixed.
In the gravity weight there is a thread (M12), e.g. for a ring bolt
(article no. 2.27424).
Make sure that the probe cable is not completely taut. Avoid
tensile loads on the cable.
Avoid undefined cable-vessel connections, i.e. the connection
must be either grounded reliably or isolated reliably. Any
deviation from this requirement can lead to measurement
errors.
VEGAFLEX 66 should be integrated in the vessel installation.
This prevents the electronics from strong heating by heat
radiation.
32764-EN-080716
16VEG
AFLEX 66 • Profibus PA
1
2
ounting
4 M
sure that with heated vessels the permissible ambient
Make
temperature on the housing is not exceeded. The permissible
ambient temperature is stated in chapter "Technical data"
under "Ambient conditions".
Fig. 6: Vessel
1Heat insulation
2Ambient temperature on the housing
32764-EN-080716
VEGAFLEX 66 • Profibus PA17
with heat insulation
ecting to power supply
5 Conn
Note safety instructions
Take note of
safety instructions for Ex applications
Select power supply
Selecting connection
cable
5 Con
5.1 Preparin
necting to power supply
g the connection
Always keep in mind the following safety instructions:
l Connect only in the complete absence of line voltage
l If overvoltage surges are expected, overvoltage
arresters
should be installed according to Profibus specifications
Tip:
We
recommend VEGA overvoltage arrester B63-32.
In
hazardous areas you should take note of the appropriate
regulations, conformity and type approval certificates of the
sensors and power supply units.
Power is supplied via a Profibus DP/PA segment coupler or a
VEGALOG 571 EP input card. The power supply range can
differ depending on the instrument version.
Data for power supply are specified in chapter "Technical
data".
Connection is made with screened cable according to the
Profibus specification. Power supply and digital bus signal are
carried over the same two-wire connection cable.
Use cable with round cross-section. A cable outer diameter of
5 … 9 mm (0.2 … 0.35 in) ensures the seal effect of the cable
gland. If you are using cable with other diameter or crosssection, you have to exchange the seal or use a suitable cable
gland.
Please make sure that your installation is carried out according
to the Profibus specification. In particular, make sure that the
termination of the bus is done with appropriate terminating
resistors.
Cable gland ½ NP T
On the instrument with cable entry ½ NPT and plastic housing
there is a metallic ½" threaded insert moulded into the plastic
housing.
18VEG
32764-EN-080716
AFLEX 66 • Profibus PA
ecting to power supply
5 Conn
Caution:
grease should be used when screwing the NPT cable
No
gland or steel tube into the threaded insert. Standard grease
can contain additives that corrode the connection between
threaded insert and housing. This would influence the stability
of the connection and the tightness of the housing.
Cable screening and
grounding
Select connection cable for Ex
applications
In systems with potential equalisation, connect the cable
screen directly to ground potential at the power supply unit, in
the connection box and at the sensor. The screen in the sensor
must be connected directly to the internal ground terminal. The
ground terminal outside on the housing must be connected to
the potential equalisation (low impedance).
In systems without potential equalisation, connect the cable
screen directly to ground potential at the power supply unit and
at the sensor. In the connection box or T-distributor, the screen
of the short stub to the sensor must not be connected to
ground potential or to another cable screen. The cable screens
to the power supply unit and to the next distributor must be
connected to each other and also connected to ground
potential via a ceramic capacitor (e.g. 1 nF, 1500 V). The low
frequency potential equalisation currents are thus suppressed,
but the protective effect against high frequency interference
signals remains.
total capacitance of the cable and of all capacitors must
The
not exceed 10 nF in Ex applications.
note of the corresponding installation regulations for Ex
Take
applications. In particular, make sure that no potential equalisation currents flow over the cable screen. In case of
grounding on both sides this can be achieved by the use of a
capacitor or a separate potential equalisation.
5.2 Connection steps - Instrument housing
Proceed as follows:
1 Unscrew the housing cover
2 If an indicating and adjustment module is installed, remove
it by turning it slightly to the left.
3 Loosen compression nut of the cable entry
32764-EN-080716
VEGAFLEX 66 • Profibus PA19
ecting to power supply
5 Conn
4 Remove
approx. 10 cm (4 in) of the cable mantle, strip
approx. 1 cm (0.4 in) insulation from the ends of the
individual wires
5 Insert the cable through the cable gland into the sensor
6 Lift the opening levers of the terminals with a screwdriver
(see following illustration)
7 Insert the wire ends into the open terminals according to
the wiring plan
Fig. 7: Connection
steps 6 and 7
8 Press down the opening levers of the terminals, you will
hear the terminal spring closing
9 Check the hold of the wires in the terminals by lightly
pulling on them
10 Connect the screen to the internal ground terminal, connect
the outer ground terminal with potential equalisation
11 Tighten the compression nut of the cable entry. The seal
ring must completely encircle the cable
12 Screw the housing cover on
The electrical connection is finished.
5.3 Wiring plan, single chamber housing
following illustrations apply to the non-Ex as well as to the
The
Ex-ia version.
20VEG
32764-EN-080716
AFLEX 66 • Profibus PA
5
5
5
5
12
4
3
I²C
Display
1 25 6 7 8
3
4
1
2
Housing overview
ecting to power supply
5 Conn
Electronics and connection compartment
Fig. 8: Material
1Plastic
2Aluminium
3Stainless steel, investment casting
4Stainless steel, electro-polished
5Filter element for air pressure compensation of all material versions. Blind
stopper with version IP 66/IP 68, 1 bar for Aluminium and stainless steel
Fig. 9: Electronics
1Plug connector for VEGACONNECT (I²C interface)
2Spring-loaded terminals for connection of the external indication VEGADIS
61
3Ground terminal for connection of the cable screen
4Spring-loaded terminals for voltage supply
versions, single chamber housing
and connection compartment, single chamber housing
32764-EN-080716
VEGAFLEX 66 • Profibus PA21
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